Definition of swainsona
1 capitalized : a genus of Australian herbs and subshrubs (family Leguminosae) having odd-pinnate leaves and racemes of small variously colored flowers with orbicular standard and twisted wings
2 plural -s : any plant of the genus Swainsona — see darling pea
Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of swainsona
New Latin, from Isaac Swainson †1806 English gardener
Seen and Heard
What made you want to look up swainsona? Please tell us where you read or heard it (including the quote, if possible).